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公开(公告)号：US2896861A
公开(公告)日：1959-07-28
申请号：US54500555
申请日：1955-11-04
Applicant: JOHN DREW , GERALD W FRASIER , JOHN O HRUBY JR
Inventor： HRUBY JR JOHN O
CPC classification number: B05B3/0445 , A62C31/02 , A62C31/12 , B05B1/14 , B05B3/008 , B05B3/0427 , B05B15/74
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